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#!/usr/bin/perl -w
# Copyright (c) 2002 ISOMEDIA, Inc.
# Written by Steve Milton
# Released under the GNU Public License
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Usage: check_raid <raid-name>
# Example: check_raid md0
# WARNING md0 status=[UUU_U], recovery=46.4%, finish=123.0min
use strict;
use Getopt::Long qw(:config no_ignore_case);
my %ERRORS=('DEPENDENT'=>4,'UNKNOWN'=>3,'OK'=>0,'WARNING'=>1,'CRITICAL'=>2);
my $mdstat = "/proc/mdstat";
my $verbose = 0;
GetOptions('mdstat=s' => \$mdstat,
'v|verbose+' => \$verbose,
'h|help' => sub { usage(); exit $ERRORS{'UNKNOWN'}; },
'V|version' => sub { version(); exit $ERRORS{'UNKNOWN'}; });
# die with an error if we're not on Linux
if ($^O ne 'linux') {
print "This plugin only applicable on Linux.\n";
exit $ERRORS{'UNKNOWN'};
}
my $mddev = shift;
open (MDSTAT, "<$mdstat") or die "Failed to open $mdstat";
my $found = 0;
my $status = "";
my $recovery = "";
my $finish = "";
my $speed = "";
my $active = "";
while(<MDSTAT>) {
chomp;
if ($found) {
if (/(\[[_U]+\])/) {
$status = $1;
} elsif (/recovery *= *([^ ]+)/) {
$recovery = $1;
($finish) = /finish= *([^ ]+)/;
($speed) = /speed= *([^ ]+)/;
} elsif (/^[^ \t]/) {
last;
}
} else {
if (/^$mddev\s*:/) {
$found = 1;
if (/active/) {
$active = 1;
}
}
}
}
my $msg = "FAILURE";
my $code = "UNKNOWN";
if ($status =~ /_/) {
if ($recovery) {
$msg = "$mddev status=$status, recovery=$recovery, finish=$finish, speed=$speed",
$code = "WARNING";
} else {
$msg = "$mddev status=$status";
$code = "CRITICAL";
}
} elsif ($status =~ /U+/) {
$msg = "$mddev status=$status";
$code = "OK";
} else {
if ($active) {
$msg = "$mddev active with no status information";
$code = "OK";
} else {
$msg = "$mddev does not exist";
$code = "CRITICAL";
}
}
print "RAID $code: $msg\n";
exit ($ERRORS{$code});
sub usage {
print qq{usage:
check_linux_raid.pl [--mdstat=</proc/mdstat>] <md-device>
e.g.
check_linux_raid.pl md0
};
}
sub version {
print "check_linux_raid.pl 1.1\n";
}
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